Question

I am currently digitalising a form for doctors, where they can input some patients data. The “basics” (check-boxes,radio-button,etc.) were pretty easy to create. I used formtastic for this.

But now to the real problem: the doctors have to mark an area in a circle (it’s for breast cancer patients), where the tumor is. On paper this wasn’t a problem obviously.

Is it possible to do the same with ruby on rails?
Users have to mark and save the “marked circle” . Also it would be great if the user could edit (remove the mark and/or add another mark) the circle after or before its saved.

I created a little example:

http://i49.tinypic.com/2v2wemu.jpg

(Can’t include the image in my post, since I’m a new user, hope this works nevertheless)

Answer 1

I think this is more a javascript question.

You will work with images, and what is important to you is the image element itself, its resolution, and how to capture cursor position when a user clicks it.

start with something like

$('img').click()

and after

jquery offset